Seal for phonographic records.



l nu. 692,623.' l l Patented Feb. 4, |902.

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SEAL FDR PHUNUGRAPHIC RECORDS.

(Application tiled Dec. 7, 1900.) (un wlmi.)

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UNITED STATES 4P-Arlnwr OFFIC.

ALFRED CLARK, CFVPARIs, FRANCE.

SEL FOR PHONOGRAPIHIC RECORDS.

SPECIFICATION forming part of Letters Patent N o. 692,623, dated February 4, 1902. Application filed December 7,1900. Serial No. 38,992. (No model.)

To all whom it may concern:

Be it known that I, ALFRED CLARK, a citizen of the United States, residing at Paris,

' France, have invented certain new and useful Improvements in Seals for Phonographic Records, of which the following is a specication.

The object of this invention is to provide a seal upon a phonographic record in order that such records may be placed on saleand protected against use, so as to prevent them from being injured thereby.

Each time that a phonographic record is used to reproduce the sounds recorded on it the irregularities in the recordegroove corresponding to the sound-waves are partially destroyed and the record is to that extent injured. To prevent this, I provide a seal, which may form a part of the record-blank or be attached thereto, the object being to so apply such seal to the phonographic record so that it must be broken or destroyed by the act of placing the recordupon the phonograph. l ,Y

My invention is shown applied to disks. When applied to ilat disks, I may embed an irregular square of paper over the central aperture, so as to be flush with the surface of the disk,` and cause a design or trade-mark to be imprinted thereon, so that the paper would have to be punctured when the record is placed upon the machine for use. This paper may be embedded in the disk, preferably on its lower side, in the process of manufacture.

In the drawings which accompany this speciL 35 floation, Figures 1 and 2show my invention applied thereto. Fig. l represents a disk having an irregular square of paper embedded therein, so as to cover the central aperture. Fig. 2 is a side elevation of the same;

Like letters' of reference indicatesimilar parts throughout the drawings.

a represents a at disk of a material suitable for a phonograph or other talking-machine record.

d represents an irregular square of paper placed upon or embedded in the disk a, so as to cover the central aperture c during or after its process of manufacture.

I use the word phonographic in a broad sense as applying to all kinds of machines for recording and reproducing sounds.

Having 'now described my invention, what I claim as new, and desire to secure by Letters Patent, is-L A phonographic record -having a seal embedded therein or placed thereon to cover the central aperture so that it must be punctured by the act of placing the record in use upon the machine, substantially as described.

In testimony whereof I, 'ALFRED CLARK, have signed my name to this specification, in the presence of two subscribing witnesses, this 3d day' of December, 1900.

ALFRED CLARK. Witnesses:

FREDK. C. FISCHER, HARRY G. WALTERS. 

